Heavy snow fell across northwestern New Jersey and a wintry mix of snow and freezing rain affected central and southwestern New Jersey from the evening of the 20th into the morning of the 21st. Snowfall accumulations averaged 5 to 8 inches in northwestern New Jersey and 2 to 5 inches across central and southwestern New Jersey. Accumulations in southeastern New Jersey were less than 2 inches. Ice accretions in central and southwestern New Jersey averaged less than one tenth of an inch. Because this event occurred on a holiday weekend with schools and most businesses closed on the 21st, the number of reported accidents was lighter than usual. Conditions were reported as quiet although many rural and northern area roads were slick and slippery in spots. Minor accidents were reported on the Garden State Parkway. Precipitation started as snow during the evening of the 20th across New Jersey, except it started around midnight toward the southeast coast.  As warmer air moved in aloft, the snow changed to rain between 2 a.m. and 4 a.m. EST on the 21st in southeast New Jersey.  Across central and southwestern New Jersey, surface temperatures were still below freezing and precipitation changed to freezing rain between 2 a.m. and 5 a.m. EST on the 21st. Precipitation fell as snow throughout the event in northwestern New Jersey. The precipitation ended during the morning of the 21st from south to north between 5 a.m. and 10 a.m. EST.  Specific accumulations included 7.7 inches in Barry Lakes, 7.5 inches in Haskell and Butler (Morris County), 7.4 inches in Marcella (Morris County), 6.8 inches in Wantage (Sussex County), 6.0 inches in Hanover (Morris County), 5.5 inches in Whitehouse Station and Port Murray (Hunterdon County) and Hackettstown and Blairstown (Warren County), 5.0 inches in East Brunswick (Middlesex County), 4.8 inches in New Brunswick (Middlesex County) and Skillman (Somerset County),  4.6 inches in Hillsborough (Somerset County), 4.2 inches in Lawrenceville (Mercer County),  4.0 inches in Clarksburg and Manasquan (Monmouth County), 3.7 inches in Hightstown (Mercer County), 3.2 inches in Burlington and Edgewater Park (Burlington County), 3.1 inches in Maple Shade (Burlington County), 3.0 inches in Mount Holly (Burlington County), 2.8 inches in Brick (Ocean County), 2.5 inches in Tabernacle (Burlington County) and Lindenwold (Camden County), 1.8 inches in Estelle Manor (Atlantic County) and West Deptford (Gloucester County), 1.1 inches in Seabrook (Cumberland County) and 0.7 inches at the Atlantic City International Airport. The wintry weather was caused by a low pressure system that formed to the lee of the central Rockies on the 19th. It moved into eastern Iowa during the afternoon of the 20th, central Illinois during the evening of the 20th, Lake Erie shortly after midnight EST on the 21st and Lake Ontario around sunrise on the 21st. Precipitation occurred on the cold side of this low pressure systems warm front.

Winter Weather in WESTERN MONMOUTH, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in WESTERN OCEAN, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in HUNTERDON, NEW JERSEY
From 20-FEB-05 21:00:00 to 21-FEB-05 08:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in SOMERSET, NEW JERSEY
From 20-FEB-05 21:00:00 to 21-FEB-05 08:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in SUSSEX, NEW JERSEY
From 20-FEB-05 21:00:00 to 21-FEB-05 10:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in WARREN, NEW JERSEY
From 20-FEB-05 21:00:00 to 21-FEB-05 08:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in CAMDEN, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in EASTERN MONMOUTH, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in GLOUCESTER, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in MERCER, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in MIDDLESEX, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in NORTHWESTERN BURLINGTON, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in SALEM, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in SOMERSET, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER

Winter Weather in SOUTHEASTERN BURLINGTON, NEW JERSEY
From 20-FEB-05 19:00:00 to 21-FEB-05 06:00:00 (EST)
Reported by: TRAINED SPOTTER